Suction box for paper machines



W. H. GROSSE SUCTION BOX FOR PAPER MACHINES Jap. 19, 1932.

2 Sheets-Sheenl Invenfo WHen/y @055e Filed NOV. ll, 1929 Attorney Jan. 19, 1932. w. H. GROSSE l 1,842,020

SUCTION BOX FOR PAPER MACHINES Filed Nov. ll, 1929 2 Sheets-Sheet Z #l k Y mi: i

S Q; n"q\3`\ y k R Q A Y Inventor @rosse A tiorny l Patented Jan. 19, 1932 WILLIAM HENRY GROSSE, F DEFERIET, NEW YORK SUC-TION BOX FOR PAPER MACHINES Application filed November 11, 1929. Serial No, 406,399.

boxes that are now used on paper machines.'

A still further object of the invention is to provide a suction box of the character above mentioned, whereby is afforded elimination of all unnecessary friction, and wherein will be obtained a free and even iow of vacuum giving a perfect suction to that part of the wire of the paper machine where such suc* tion is desired and intended.

A still further object of the invention is to provide a suction box for paper making machines wherein the suction box intends to support the roll and also takes care of the vacuum and the water that passes through the wire between the roll.

Other objects and advantages of the invention will become apparent during a study of the followin description, taken in connection with the accompanying drawings, wherein Figure 1 is a top plan view of a suction box embodying the features of the present invention.

Figure 2 Vis al longitudinal vertical sectional view taken therethrough. y

Figure 3 is a detail transverse sectional view taken substantially on the line 3-3 of Figure 1. f

Figure 4; is an elevational view of one of plates forming .the adjustable head which embodies a feature of the present invention.

Figure 5 is a side or end elevation thereof.

Figure 6 is a top plan view of a complemental plate of the adjustable head.

Figure T is a fr-ont elevational view thereof,

With reference more in detail to the drawings, it will be seen that my improved suction box for paper machines consists of an elongated substantially rectangular hollow box`designated generally by the reference character 5. This box 5 lcomprises bottom 6, end Walls 7 and a top wall 8.

The top 8 of the box is provided with an elongated opening 9 extending longitudinally from the box and terminating at its end inwardly from the ,end Walls ,of the box. The side walls 10 of the box are each provided with elongated side boards I11, the length of the side boards 11 being substantially equal to the length of the opening 9. These side boards l1 1 are adjustably secured to the side walls l0 through the medium of adjusting nuts 12. Inserted between the QPPosite faces of v the side walls l() andthe side boards 11 .are elongated strips of rubber 13. The purpose .of these strips of rubber will be hereinafter more clearly set forth in detail.

Adjacent one side ofthe box 41() and at opposite ends of the opening 9 there is secured to the top 8 of the box bearing brackets 14-1l. Adjacent the .opposite side of the box and .also at opposite end ,of the y,opening 9 are bearing brackets 15-15. There is also provided a pair of horizontally disposed spaced parallel rollers 16:-16. These rollers 16 are identical in every detail and at their ends are provided with p intles 17 The pintles 17 .of one of the rollers 16 are mounted in the bearing brackets .15 and the pntles 17 of the other of said rollers '.16 .are mounted in the bearing brackets 1 4, 'softhat obviously the rollers 16 are disposed along oppositeedges of the box 10 and vextend for the Af ull length of the opening 9.

At ,each end .of the opening V9 for disposition between the adjacent ends of the rollers 1 6 .there is adjustably ln iounted 0n the box a head structure .designated generally by the reference character V18.

.Each .of .these head `structures 18 are identical in construction, and, therefore, a detail description of one is deemed sufficient. rI`hus it will be seen that each of said head structures 18 comprises an angular shaped plate 19, which plate 19 comprises a body portion 2O adapted for disposition against the under face of the top 8 at the opposite end of the opening 9. rEhe body portion 20 is provided with an elongated slot 21 extending inwardly from the free edge thereof and an adjusting nut 22 extends through the slot 21 and is threaded in the top 8 as shown to advantage in Figure 2. Obviously, by loosening the adjusting nut 22 the plate 19 may be moved toward or away from the adjacent end wall of the box 5 for disposition in any predetermined position. t its forward end, the body portion 2O of the plate 19 preferably extends beyond the adjacent edge of the top 8 and at said forward end said body 2() merges into a vertically disposed arm 23, said arm 23 having its opposite vertical edges curved as at 24 so as to conform with the periphery of the rollers rlhe arm 23 extends upwardly between the rollers 16 as shown to advantage in Figure 1. Forming a part of the head structure 18 is a vertically disposed secondary plate 25 adapted to be positioned rearwardly of the arm' 23 and in parallelism thereto. The vertical edges of the plate 25 are arcuately recessed as at 26, the recesses 26 adapted to receive the sides of the rollers 16 as is also shown to advantage in Figure 1. Disposed between the arm 23 and the plate 25 is a sheet of rubber 27, said plate 25, arm 23 and the sheet of rubber 27 being secured together through the medium of a clamping nut 23, passing through aligned openings 29 and 30, respectively, in said arm 23 and plate 25 and through the intervening rubber 27.

rt`hese adjustably mounted end heads 18 completely close the space between the rollers 16 at the adjacent ends of said rollers. Further, from a study of Figure 3, it will be seen that the rubber strips 13 have their upper longitudinal edges adapted to engage the periphery of the rollers 16.

fit one end of the box 5, the bottom 6 of the box is provided with a water outlet opening 31 from which extends a drain pipe 32. Also, at said one end, the box 5 has a pair of end spaced plates 33 rising therefrom and communicating with the interior thereof. To the upper open end of the plates 33 may be secured a suitable hose (not shown) leading from the vacuum pump of the paper machine also not shown. ln actual practice, and as shown to advantage in Figure 3, the wire carrier designated by the reference character C which is conventional to paper making machines, runs over the rollers 16 16 carrying the wet paper designated generally by the reference character P therewith, the wire C and paper P passing thereover and then between the conventional roller R and drum D of the paper machine in the manner and for the purpose well known in the art.

The box 5 may be made of wood or metal, and the rolls 16-16 which may be two or more in number, preferably two as shown in this embodiment are of brass or other metal, the length of the box and rolls corresponding, of course, to the width of the machine upon which they are used. rlhe box and rolls work in unison with one another, and the box, rolls, end heads 18 and adjustable side boards 11 are so arranged and cooperate one with another that when the wire C travels over the rolls and the paper carried thereby seals the top of the structure so that when in operation the entire device is practically air tight.

The vacuum pump, not shown, to which the pipe 33 may be coupled will produce the necessary vacuum as will be required to draw the water from the paper P.

It is believed that a clear understanding of the operation, construction, utility and advantages of a suction box for paper machines of this character will be had by those skilled in this art without a more detailed description.

Even though l have herein described the preferred embodiment of my invention, it is to be understood that the same is susceptible to changes fully comprehended by the spirit of the invention as herein described, and the scope of the appended claims.

Having thus described my invention, what l claim as new is 1. A suction box for paper machines, said box including a bottom, top, side and end walls, said top wall having an elongated opening -formed therein, a pair of spaced apart rollers rotatably supported on the top wall of said box, said rollers extending one to each side of said opening, end head adjustably mounted on the top wall of said box and adapted for disposition between said rollers, each of said heads comprising a pair of plates, one of said plates embodying an a taching body adapted to be secured to the top wall of said box, means for adjustably securing the body portion of said one plate to said top wall, an arm rising from the body portion oi said one plate and extending between adjacent ends of said rollers, a second plate secured to said arm for disposition between said rollers, and a sheet of rubber interposed between said arm and said second plate.

2. In combination with a suction box for paper making machines, a sealing head supported thereon and adapted for insertion between a pair of rollers of the machine, d head comprising a pair of plates, one of 'which is relatively wide at its lower end and merges into a relatively narrow vertical extension, and the other of which is substantially reetangular, and provided with arcuate notches on opposite edges thereof for accommodating the periphery of the rollers, means for clamping said plates together, and said irst mentioned plates provided With a right angularly disposed attaching portion provided with an elongated slot, and bolt means engaging the boX and slotted portion of said one plate for adjustably Clamping said head on seid box.

In testimony whereof I aflix my signature.

WILLIAM HENRY GROSSE. 

